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Head rests

a head rest and seat technology, applied in the direction of chairs, pedestrian/occupant safety arrangements, vehicular safety arrangements, etc., can solve the problems of passenger head not being suitably held by the tilted head rest main body, passenger head not being suitably positioned relative to the passenger head, etc., to achieve good holding performance

Inactive Publication Date: 2010-05-18
TOYOTA BOSHOKU KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides improved head rests for vehicles that can hold a passenger's head securely in the event of an impact. The head rest includes a head support portion and a drive unit that can move the head support portion towards and away from the passenger's head. The drive unit has a load detecting device that can detect the load on the actuator and generate a control signal. A controller controls the actuator to move the head support portion towards the passenger's head and stops it when it reaches its optimal position. The head support portion can also be moved away from the passenger's head to prevent discomfort. The technical effect of this invention is to provide a more comfortable and secure ride for passengers in the event of a collision.

Problems solved by technology

Therefore, in the known head rest, the head rest main body is not always appropriately positioned relative to the passenger head.
Consequently, when a vehicle actually collides, often times, the passenger head cannot be suitably held by the tilted head rest main body.
This means that the passenger cannot be sufficiently prevented from suffering a whiplash injury.

Method used

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Examples

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Embodiment Construction

[0020]A representative example of the present invention has been described in detail with reference to the attached drawings. This detailed description is merely intended to teach a person of skill in the art further details for practicing preferred aspects of the present teachings and is not intended to limit the scope of the invention. Only the claims define the scope of the claimed invention. Therefore, combinations of features and steps disclosed in the foregoing detailed description may not be necessary to practice the invention in the broadest sense, and are instead taught merely to particularly describe detailed representative examples of the invention. Moreover, the various features taught in this specification may be combined in ways that are not specifically enumerated in order to obtain additional useful embodiments of the present teachings.

[0021]A detailed representative embodiment of the present teachings is shown in FIG. 1 to FIG. 7.

[0022]As best shown in FIGS. 1, 6 an...

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PUM

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Abstract

A head rest of a vehicle seat may include a head support portion for supporting a head of a passenger, and a drive unit for moving the head support portion. The drive unit has a moving mechanism that is arranged and constructed to move the head support portion toward and away from the passenger head, an actuator for actuating the moving mechanism, a load detecting device that can detect a load applied to the actuator and generate a control signal representative of the detected load, and a controller that can control the actuator so as to control the moving mechanism. The controller controls the moving mechanism so as to move the head support portion toward the passenger head. The controller controls the moving mechanism based on the control signal so as to stop the motion of the head support portion.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to head rests of vehicle seats. More particularly, the present invention relates to head rests of vehicle seats that can increase restraint performance for heads of passengers when a vehicle collision is sensed or predicted.[0003]2. Description of the Related Art[0004]A head rest of a vehicle seat that can increase restraint performance for a head of a passenger when a vehicle collision is sensed or predicted is already known. Such a head rest (an active head rest) is taught, for example, by Japanese Laid-Open Patent Publication Number 11-334439.[0005]In the known head rest, a head rest main body is arranged and constructed to be tilted or inclined. When a vehicle collision (in particular, a back-side collision) is predicted or sensed by a sensor, the head rest main body is tilted, based on a signal from the sensor, so as to move toward the passenger head. As a result, the head rest main bo...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B60N2/42A47C7/36
CPCB60N2/4885B60N2/4861B60N2/888B60N2/862
Inventor TODA, SHIGEYOSHIAKAIKE, FUMITOSHINISHIMURA, SEIYAMORIYAMA, TOMOKAZUMATSUBAYASHI, KIYOKAAOKI, KOJI
Owner TOYOTA BOSHOKU KK
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